Laurent Cassegrain

Laurent Cassegrain (* about 1629 in Chartres, † August 31 1693 in Chaudon (Eure -et -Loir ) ) was a Catholic priest. He is the inventor and namesake of the Cassegrain telescope.

There are few records of his life:

  • He worked as a teacher of science at the Collège de Chartres, a French lycée.
  • The invention of the telescope is a result of a manuscript attributed to him, the marquis de Bercé mentioned in an exchange of letters, which by Jean -Baptiste Denis, , is excerpts published as a result of the invention of the Newtonian telescope.
  • He has published a memorandum on mouthpieces
Cassegrain reflector Jean-Baptiste Denys
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